/Engine/Plugins/Online/OnlineServicesEOSGS/Source/Public/Online/SessionsEOSGS.h
virtual [TOptional](API\Runtime\Core\IO\TOptional)< [FOnlineError](API\Plugins\OnlineServicesInterface\Online\FOnlineError) > CheckState ( const [FCreateSession::Params](API\Plugins\OnlineServicesInterface\Online\FCreateSession\Params) & Params ) const